40213563828797 has 2 divisors, whose sum is σ = 40213563828798. Its totient is φ = 40213563828796.

The previous prime is 40213563828721. The next prime is 40213563828827. The reversal of 40213563828797 is 79782836531204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38724160819876 + 1489403008921 = 6222874^2 + 1220411^2 .

It is a cyclic number.

It is not a de Polignac number, because 40213563828797 - 2¹² = 40213563824701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40213563822797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20106781914398 + 20106781914399.

It is an arithmetic number, because the mean of its divisors is an integer number (20106781914399).

It is a 1-persistent number, because it is pandigital, but 2⋅40213563828797 = 80427127657594 is not.

Almost surely, 2^{40213563828797} is an apocalyptic number.

It is an amenable number.

40213563828797 is a deficient number, since it is larger than the sum of its proper divisors (1).

40213563828797 is an equidigital number, since it uses as much as digits as its factorization.

40213563828797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 40213563828797 in words is "forty trillion, two hundred thirteen billion, five hundred sixty-three million, eight hundred twenty-eight thousand, seven hundred ninety-seven".